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PR ODUCT FEATURE

Bristow’s Bond, who has a roaming commission from the United Kingdom to Australia, is often called to train search and rescue personnel throughout the world. He believes it is training that rein- forces the teamwork required for success- ful missions and requires one to two hours a day when staff is on the job. “In order to consistently pull off res-

cues in difficult conditions the whole crew must work together as a team,” says Bond. “Helicopter search and rescue is by defin- ition teamwork of the highest order.” While other tools like forward looking infrared radar, night vision goggles and electronic horizontal situation indicators add to the strength of a rescue team, at some point it all comes down to the indi-

Buying A Hoist? Consider This.

As with any purchase, adequate research is essential when buying a hoist to make sure you get exactly what you need to meet your search and rescue requirements. Below is a list of questions an organization should ask before buying. By con- sidering the questions below, the hoist you purchase will de- liver the best opportunity for successful missions. What kind of helicopter(s) do you have? Rescue hoists are certified for the type of helicopter in which they will be operated. Can a hoist be mounted internally or externally in your helicopter(s)? Each type of hoist has its advantages and disadvantages depending on the mission environment and flight profiles to be flown.

What type of missions do you routinely fly? Under low wind conditions the rescue cable is perfectly deployed plum, directly under the aircraft (zero deflection). In strong winds, with the pitching or rolling of a boat, with moderate wave action, or on cliff-side rescues, the angle of the rescue cable may be deflected more. This deflec- tion, known as fleet angle, can be generated spontaneously from high winds, navigating obsta- cles, or hovering over swift moving flood waters, as well as in any number of other rescue situations. A translat- ing drum hoist delivers an un- limited fleet angle, is unaffected by the pitch and roll of the aircraft,

and as a result, reduces the chance of a miswrapped cable. Conventional level-wind hoists are affected by the horizontal load from the fleet angle which, over time, increases wear and reduces the reliability of level-wind hoists.

Do you conduct rescues that require frequent stop- ping and starting? Lag-time is a significant issue with maritime/CSAR hoisting. When you need to stop, you need

20 ROTORCRAFT PROFESSIONAL • August 2009

viduals on board. For Johnson it’s a mat- ter of heart.

“People who work in search and rescue are all fairly driven individuals,” says John- son. “They want to come in, do the job, deliver effective search and rescue. I’ve never met anyone in this business around the world that didn’t want to save lives and make a difference. It’s what we do.” ❚

to stop now! Translating drum systems provide symmetrical braking, elim- inating additional payout upon reversal of cable direc- tion. This gives operators greater control. What type of power supply capability does your aircraft have? Very simply, AC power offers in- creased performance for all attendant rescue equipment including hoists.

Will your hoist routinely operate for long peri-

ods of time? The type of heat distribution used to cool a hoist cable affects the length of time the hoists can be safely operated. If you anticipate op- erating with constant height adjustment (i.e., mar- itime rescues, swift water rescues, or sheet cliff rescues) it is important to have a hoist with a wet- clutch. A wet-clutch system eliminates cable wear associated with standard over drive mecha- nisms and also allows the cable to be lubricated extending its life. Both electrical and hydraulic rescue hoists from Goodrich feature systems that eliminate the need for cool down periods allowing unlimited operation. What is the climate of opera- tion? Corrosion control is a critical element of maintain- ing hoist cables. Proper lu- brication is always essential but especially when hoists are used in salty environ- ments. When a cable is lubri- cated regularly, oil from the cable is also transferred to internal

metallic parts minimizing corrosion.

Will your crew spend enough time training to stay up to date on current hoist procedures? Rescue hoisting is an advanced skill that requires both the pilot and the rescue crew to act as a team. This requires the use of standard- ized hoisting terminology, co-ordination, pilot and aircrew technical skills, standard SAR mission and emergency pro- cedures, and crew resource management. ❚ Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52
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